6.5 x 47 ?

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dryfire
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6.5 x 47 ?

Post by dryfire »

I have seen and heard references to this cartridge. Is it a proprietary
cartridge or based on an existing case ?
Thanks to all
Andrew Patchett
ajj
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Post by ajj »

It is a proprietary Lapua cartridge. Lapua will be supplying the brass. There was a good bit of info posted on www.6mmbr.com when it was introduced not too long ago. Very intriguing cartridge. Pretty, too. Mr. Neihouse should be able to give us a report shortly. I think Mr. Marvin has built a few. He would have built me one if he hadn't had a chambered .260 barrel ready a few months ago. I forget just now why the idea of getting a new rifle in December, when it was too cold to test, was so attractive.
propwash
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Post by propwash »

check this out....I want a 6.5 x 47 but I have too many irons in the fire right now to start a build.

http://www.6mmbr.com/gunweek072.html
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jneihouse
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Post by jneihouse »

Picked up my 6.5X47 Lapua from Evelio in Jacksonville. Gun is built on a Rem 700 Short Action, Krieger barrel, and a Pharr Split Finger Stock. Bought the Brass from Midway (pricey) and RCBS dies. Evelio shot the gun after the build with very good accuracy with a load he got from Pharr. Load could have been on the hot side, but worked well and was extremely accurate. From what I've read, it may be that this round likes to be loaded hot. Just getting over the trip to Fla and the end of tax season so haven't loaded for it yet, but will work with it this weekend. Will post results here as soon as I have them. Looks to be a very promising round.

John
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propwash
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Post by propwash »

I was going to build off a 700 sa as well....but I may lean toward a stiller predator repeater. I don't really need BR quality accuracy or price so I'll probably stick with the 700...I'll check back for pics. Congrats on what sounds like an awesome rifle.
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Post by carl425 »

prop,

By the time you pay for the Remington action, then pay for the gunsmith's labor to "blueprint" it, you're very close to the price of the custom action. Take a look at the Lawton 400X in addition to the Stiller. I'm sure either one would be fine, but I'm not fond of "Predator" being spelled out on the side of the action in big block letters.

I also have one of these in process. I'm going nuts waiting for it.
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Post by Troy G »

I'm not fond of "Predator" being spelled out on the side of the action in big block letters.
That is why you need to buy the Tac line in the oxidized black finish with the bigger bolt knob. Just ordered one myself and want to get rid of three Rem 700 actions.

What powders was Evelio using to get what velocities? PM me if you don't want to post information on the main forum.
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Post by carl425 »

Here's the data Lapua sent me when I asked them.

Bullet 100 grs Scenar COL = 2.736 inches

N133 starting charge 32.4 grs 2852 fps maximum charge 34.9 grs 3033 fps
N135 starting charge 34.0 grs 2918 fps maximum charge 35.7 grs 3049 fps
N140 starting charge 37.0 grs 2951 fps maximum charge 39.5 grs 3115 fps

Bullet 108 grs Scenar COL = 2.736 inches

N133 starting charge 30.3 grs 2646 fps maximum charge 34.0 grs 2892 fps
N135 starting charge 31.5 grs 2669 fps maximum charge 34.5 grs 2962 fps
N140 starting charge 34.4 grs 2715 fps maximum charge 38.7 grs 2984 fps
N150 starting charge 36.3 grs 2784 fps maximum charge 40.6 grs 3049 fps

Bullet 123 grs Scenar COL = 2.736 inches

N140 starting charge 33.2 grs 2618 fps maximum charge 36.4 grs 2754 fps
N540 starting charge 35.7 grs 2684 fps maximum charge 39.6 grs 2874 fps
N150 starting charge 34.4 grs 2584 fps maximum charge 37.8 grs 2803 fps

Bullet 139 grs Scenar COL = 2.736 inches

N140 starting charge 30.9 grs 2302 fps maximum charge 34.7 grs 2534 fps
N540 starting charge 33.5 grs 2468 fps maximum charge 37.4 grs 2742 fps
N150 starting charge 32.4 grs 2384 fps maximum charge 36.0 grs 2580 fps
Walt G
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6.5 x 47

Post by Walt G »

There was a lot of talk about this cartridge when Lapua came out with the brass and it began to be readily available last year. Is anyone currently using it in HP silhouette matches? Anyone care to report on how effective it has been? Will the 123 Scenars or Sierras take down the rams reliably?

Are there folks out there necking it down to 6mm? Up to 7mm? If so, what are your results?

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Post by Troy G »

There is information out there on 6mmBR.com and other benchrest sites. Most of these people are worried about shooting small groups and not delivering a bunch of energy to targets that need to fall over. Based on what I have read on the net one should be able to get 2800fps with 140gr range bullets using powders like Varget, RL-15, VV-540, 550, and H4350 with barrels 24" and longer.

The 6mm variant is shooting small groups but doubt it is suitable to reliably take rams even shooting the newer 115 and 117gr DTAC or Bibs heavy bullets.

The 7mm should pound rams but there is not a really good match bullet, that I am aware of, that is really suitable for the other animals. I would think that a tipped 140gr bullet would fit the bill but would have to run numbers to see what the wind drift and velocity would be like to equal or exceed the 108-123gr bullets in 6.5. Most likely the 7mm 140s would have to be doing at least 2600 to equal the 108 at 2800 fps. One could always load the 168-180 gr down in the 7mm. The 7mm with Bob Cauterucio's 156gr bullet would get it all done.

I think the original 6.5x47 is the best option based on ease of reloading, no necking up or down, and really good bullet selection for what we need the bullets to do.

Personally I am going to try a 6.5 and maybe a 7mm. I am going to set back my .260 and run in with a 6.5x47 and I may run a 7mm into my 7TKS barrel but my 7TKS is getting the job done and I don't need more than what the 7mm TKS is doing. I never could get my 6.5 TKS to do what I wanted and I think the 6.5x47 is the perfect balance between the improved 6mmBR cases and the .260.

Don't forget there is also the 6mmXC which has slightly more capacity that I don't think is needed and large primer pockets and flashholes. 6XC brass made by Norma is supposed to be every bit as strong and concsistent as the Lapua 6.5x47 brass. Only thing is one would have to neck up to 6.5 which would not be a huge deal.

Just my opinions,

Troy
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Post by Walt G »

Troy,

Thanks for the information. Yes, I had read the 6mmBR postings and couldn't find much about Ram knock-down capability.

As an experiment last year I had built a .243 with a 26 inch barrel that I've been shooting 115 moly DTAC bullets coming out of the muzzle at ~2900 fps. I'm getting a knock-down rate on the Rams of almost 90% (i.e., 9 out of 10 hits fall over), which is comparable to what I was getting with .260 Rem/142 Sierras and 7-08/168 Sierras at the notoriously stable Atglen (PA) Rams.

Interestly, the perceived recoil, at least by me, is about the same as the 260.

I'll probably shoot out the 243 barrel this summer, so I'm looking for next winter's project. So far the 6.5x47 looks the most promising.

Walt G
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Post by ajj »

If I were moving up to a 6.5 bore I'd certainly take advantage of the 139-140 gr bullets for rams. The cartridge will throw them fast enough. The recoil savings of 120's isn't that much and moves the takedown into the "marginal" area.
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Post by Ramslammer »

G'Day All
1712FWT of the forum has ordered a heavy rifle in 6.5x47. When it's finished hopefully I'll get to give it a go. Maybe I could double up at the Nationals?
Juddy
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6.5 X 47

Post by jrose »

I have been shooting the 7.5 X 47 for about six months now. With 36 grains of Varget the MK107's are pushing 3000 fps and the MK142's are about 2780. In 8 matches I have yet to loose a ram including a couple houndred rounds in practice. I think this 6.5 will be around a bunch in the future, but also in the 7mm version for the ones that think they need it. I am using a BAT action with a shilan barrel and it is grouping between 1/4 and 1/3 MOA.
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Post by jrose »

Sorry for the typo above. I meant 6.5 not 7.5.
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